Advances in nano research

  • 제13권3호
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  • Pages.259-267
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  • 2022
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  • 2287-237X(pISSN)
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  • 2287-2388(eISSN)
테크노프레스 (Techno-Press)
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Crossover from weak anti-localization to weak localization in inkjet-printed Ti3C2Tx MXene thin-film

  • Jin, Mi-Jin (Department of Materials Science & Metallurgy, University of Cambridge) ;
  • Um, Doo-Seung (Cambridge Graphene Centre, University of Cambridge) ;
  • Ogbeide, Osarenkhoe (Cambridge Graphene Centre, University of Cambridge) ;
  • Kim, Chang-Il (School of Electrical and Electronics Engineering, Chung-Ang University) ;
  • Yoo, Jung-Woo (Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Robinson, J. W. A. (Department of Materials Science & Metallurgy, University of Cambridge)
  • 투고 : 2022.02.03
  • 심사 : 2022.08.05
  • 발행 : 2022.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

Two-dimensional (2D) transition metal carbides/nitrides or "MXenes" belong to a diverse-class of layered compounds, which offer composition- and electric-field-tunable electrical and physical properties. Although the majority of the MXenes, including Ti3C2Tx, are metallic, they typically show semiconductor-like behaviour in their percolated thin-film structure; this is also the most common structure used for fundamental studies and prototype device development of MXene. Magnetoconductance studies of thin-film MXenes are central to understanding their electronic transport properties and charge carrier dynamics, and also to evaluate their potential for spin-tronics and magnetoelectronics. Since MXenes are produced through solution processing, it is desirable to develop deposition strategies such as inkjet-printing to enable scale-up production with intricate structures/networks. Here, we systematically investigate the extrinsic negative magnetoconductance of inkjetprinted Ti3C2Tx MXene thin-films and report a crossover from weak anti-localization (WAL) to weak localization (WL) near 2.5K. The crossover from WAL to WL is consistent with strong, extrinsic, spin-orbit coupling, a key property for active control of spin currents in spin-orbitronic devices. From WAL/WL magnetoconductance analysis, we estimate that the printed MXene thin-film has a spin orbit coupling field of up to 0.84 T at 1.9 K. Our results and analyses offer a deeper understanding into microscopic charge carrier transport in Ti3C2Tx, revealing promising properties for printed, flexible, electronic and spinorbitronic device applications.

키워드

과제정보

This work was supported by the Institute for Basic Science (IBS-R019-Y1) and the National Research Foundation of Korea (NRF) grant funded by the Korea government (2021M3H4A1A02050421). J. W. A. R. acknowledges funding from the EPSRC through the EPSRC-JSPS Core-to-Core Grant "Oxide Superspin" (EP/P026311/1). We are grateful to Prof. Gogotsi's group (including Kathleen Maleski, Kanit Hantanasirisakul, Christopher E. Shuck, and Prof. Yury Gogotsi at Drexel University) for their supporting the Ti3C2 MXene materials and to Prof. Hassan's group (including Shouhu Liu, Guohua Hu, and Prof. Tawfique Hasan at University of Cambridge) for their supporting the inkjet printing.

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